Portable copying machine



FIG. 1 is a top plan view of the portable copying machine showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a top and right, front perspective view thereof, with the trays in position;

FIG. 8 is a right side elevational view of FIG. 7; and

FIG. 9 is a left side elevational view of FIG. 7. 

The ornamental design for a portable copying machine, as shown and described. 